I think my problem may be fixed. I have replaced the plugs, the ecu temperature sensor and also the lambda sensor. Total cost 15 quid. The engine now revs nice and smoothly. I still need to check the ecu for faults as the light didn't turn up in the post. I know there will be one fault on the for the purge valve leading to the carbon canister as this was removed.
Thanks for the help and advice . Fingers crossed it keeps working....
David
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Click to see my build photos on Flikr
http://www.flickr.com/photos/67112582@N03/
Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack.
Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though).
Car iva'd and passed 15/08/2014. Finished weight 572kg.
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